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PMID |
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20501654
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Identification of microRNA-93 as a novel regulator of vascular endothelial growth factor in hyperglycemic conditions.
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20501654
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Here, we provide evidence that microRNA-93 (miR-93) regulates VEGF expression in experimental models of diabetes both in vitro and in vivo.
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20501654
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We identified VEGF-A as a putative target of miR-93 in the kidney with a perfect complementarity between miR-93 and the 3'-untranslated region of vegfa in several species.
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20501654
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We showed that forced expression of miR-93 in cells abrogated VEGF protein secretion.
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20501654
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Conversely, anti-miR-93 inhibitors increased VEGF release.
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20501654
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Transfection of miR-93 also prevented the effect of high glucose on VEGF downstream targets.
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20501654
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Using transgenic mice containing VEGF-LacZ bicistronic transcripts, we found that inhibition of glomerular miR-93 by peptide-conjugated morpholino oligomers elicited increased expression of VEGF.
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20501654
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Our findings also indicate that high glucose decreases miR-93 expression by down-regulating the promoter of the host MCM7 gene.
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20501654
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Taken together, our findings provide new insights into the role of miR-93 in VEGF signaling pathway and offer a potentially novel target in preventing the progression of diabetic nephropathy.
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